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US 4,207,819 AGranted
Helicopter destroyer
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorKeith E. Geren
Life of this patent
Estimating the term…
Abstract
1. A helicopter destructor comprising in combination, a hydrophone channel, a microphone channel, a barometer channel, an AND gate connected to the outputs of said hydrophone, microphone, and ometer channels, an explosive means, and means connected to the outputs of said hydrophone channel and said AND gate for detonating said explosive means when a trio of signals are simultaneously applied to the respective inputs of said AND gate.
Claims12
A helicopter destructor comprising in combination,
- a hydrophone channel,
- a microphone channel,
- a barometer channel,
- an AND gate connected to the outputs of said hydrophone, microphone, and barometer channels,
- an explosive means, and
- means connected to the outputs of said hydrophone channel and said AND gate for detonating said explosive means when a trio of signals are simultaneously applied to the respective inputs of said AND gate.
3 more elements
A helicopter destructor comprising in combination,
- a hydrophone channel having a hydrophone included therein,
- a microphone channel,
- a barometer channel,
- an AND gate connected to the outputs of said hydrophone, microphone, and barometer channels,
- an explosive means,
- means connected to the outputs of said hydrophone channel and said AND gate for detonating said explosive means when a trio of signals are simultaneously applied to the respective inputs of said AND gate, and
- means connected to the output of the hydrophone of said hydrophone channel for receiving a sonar signal from an aqueous medium and broadcasting a dopplerized version thereof back throughout a predetermined portion thereof.
4 more elements
A helicopter destructor for operation in an aqueous medium comprising in combination,
- a hydrophone channel,
- a microphone channel,
- a barometer channel,
- an exploder enabler AND gate connected to the output of said channels,
- an exploder actuator coupled to the output of said hydrophone channel,
- an explosive means,
- switch means connected between said exploder actuator, said explosive means, and to said exploder enabler AND gate adapted for being closed when an electrical signal is present at the output of said AND gate, and
- means connected to said switch means for preventing the closure thereof when said helicopter distructor is submerged in water.
5 more elements
A helicopter destructor comprising in combination,
- first means for receiving an acoustical signal from within a subaqueous medium,
- means coupled to said first acoustical signal receiving means for dopplerizing the signal received thereby,
- means coupled to said dopplerizing means for broadcasting said dopplerized signal throughout a predetermined portion of said subaqueous medium,
- first means coupled to the output of said first acoustical signal receiving means for passing a predetermined band of frequencies,
- second means for receiving an acoustical signal from the environment above the surface of said subaqueous medium,
- second means coupled to the output of said second acoustical signal receiving means for passing a predetermined band of frequencies,
- a barometric differential pressure switch means for producing an electrical output signal whenever the ambient barometric pressure increases a predetermined amount in a given period of time,
- an exploder enabler AND gate having a trio of inputs and an output with said trio of inputs respectively connected to the outputs of said first and second predetermined band of frequency passing means and the aforesaid barometric differential pressure switch means,
- an exploder actuator effectively coupled to the output of said first predetermined band of frequency passing means,
- relay switch means having a solenoid portion and a switch portion with the switch portion being closed when said solenoid portion is energized, with the switch portion thereof being coupled to the output of said exploder actuator, and the solenoid portion thereof being connected to the output of said exploder enabler AND gate,
- an exploder primer means coupled to the switch portion of said relay switch means, and
- an explosive charge means connected to said exploder primer means in such manner as to be detonated thereby.
9 more elements
A transponder for echo-repeating received signals comprising in combination,
- a first transducer for converting received signals into electrical output signals proportional thereto,
- a first bandpass filter coupled to the output of said first transducer,
- a heterodyne dopplerizer effectively connected to the output of said bandpass filter,
- a delay line coupled to the output of said heterodyne dopplerizer,
- a second bandpass filter connected to the output of said delay line, and
- a second transducer effectively connected to said second bandpass.
3 more elements
Means for actuating predetermined utilization equipment at the time of incipient amplitude recession of an input signal thereto comprising,
- a rectifier,
- an integrator coupled to the output of said rectifier,
- a lowpass filter connected to the output of said integrator,
- a resistor coupled to the output of said lowpass filter,
- a capacitor connected to said resistor,
- a ground,
- a diode connected between said capacitor and said ground, and
- an output terminal effectively connected to the interconnection of the aforesaid capacitor and diode.
5 more elements
Dependencies are inferred from the claim text.